DEVELOPMENT OF CERAMIC COATINGS AND APPLICATION OF THEIR INFRARED RADIATION Rakhimov Rustam Khakimovich, PhD, head of laboratory №1. <...> Uzbekistan Academy of sciences e-mail: rustam-shsul@yandex.com Saidov Muhtar Safarbaevich, Academician Uzbekistan Academy of sciences Physical-Technical Institute «PhysicsSun». <...> Uzbekistan Academy of sciences, e-mail: rustam-shsul@yandex.com Abstract: Smelting and sintering of the initial ceramics were performed at the Big Solar Furnace with thermal power of 1000 kW at 2500-2700°С. <...> The ceramics exhibit pulse or pulse – pair infrared (IR) radiation which could be photoluminescence or thermal radiation. <...> The attempt is made to explain pulse radiation supposing the possibility of the presence of the energy barrier on the grain boundary of the ceramics. <...> Some aspects of the converter of Solar energy into thermal radiation – Solar thermal radiator (STR) are considered. <...> The efficiency of STR with ceramic coating is considered taking into account the photon thermal conductivity, which takes place when ceramic layer does not absorb thermal radiation of the metal sheet substrate. <...> Index terms: ceramic materials, the functional ceramics, activation energy, semiconductors, infrared transformers, impulse systems. <...> Introduction: Effective realization of the technological potentials of solar furnaces for the development and production of advanced ceramics is the interesting problem of materials sciense. <...> In spite of a great deal of effort undertaken in the field of Solar engineering a large scale utilization of Solar energy remains limited. <...> In this paper the results on the synthesis of ceramics preparation of ceramic IR radiators and their application in medicine, drying the bilding materials are presented. <...> Synthesis and IR radiation of Ceramics Synthesis of CaMgSi2O6 and LnCrO3 was completed by smelting at ~2700 °C and ~2500 °C respectively at the Big Solar Furnace with thermal power of 1000 kW. Then CaMgSi2O6 and LnCrO3 samples were powdered with grain sizes of ~20µ and ~lµ respectively. 99 wt.% CaMgSi2O6 + 0,8wt.% LnCrO3 powder mixture was sintered at ~1700 °C at the solar furnace. <...> The ingot obtained was again powdered with grain size of ~20µ and grains of CaMgSi2O6 to be partialy covered by LnCrO3 layers with thickness of < 1µ. <...> This powder was mixed with finely divided CuCrO2 (0,2 wt.%) powder with grain size <...>